The EDI 810 Invoice is the electronic equivalent of a paper invoice. It is sent by the supplier to the buyer to request payment for goods or services delivered.
BIG
Beginning Segment — invoice number, date, PO number reference
IT1
Baseline Item Data — line item quantity, price, and item identifiers
TDS
Total Monetary Value Summary — total invoice amount
SAC
Service/Allowance/Charge — freight, discounts, fees
CTT
Transaction Totals
810 is typically sent after 856 ASN confirms shipment. Buyers match the 810 to the 850 PO and 856 ASN in a 3-way match before approving payment.
Most common 810 chargebacks: TDS01 not matching IT1 line totals, missing SAC for allowances, BIG04 not referencing the original 850 PO number.